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个人简介
Professor Allen Robinson's research examines the technical and policy issues related to energy and the environment. A current focus is fine particulate matter – 50,000 Americans are estimated to die prematurely each year from fine particle pollutant and almost 70 million people in the United States live in areas that violate the National Ambient Air Quality Standard for fine particle mass. Atmospheric particles also have a controlling influence on Earth’s climate and degrade visibility.
Air Quality and Particulate Matter
A major thrust of Prof. Robinson’s research is characterizing fine particle emissions from combustion systems such as diesel engines. Laboratory experiments using dilution samplers and a smog chamber have revealed a dynamic new picture for primary organic aerosol emissions, in which these emissions evaporate, oxidize, and recondense over time. These findings require updated approaches to measure and simulate emissions from combustion systems. His group is working to implement this revised framework into chemical transport models to investigate its implications on our understanding of urban, regional and global air quality. This modeling has revealed a potentially important new source of regional oxidized and presumably hydrophilic organic aerosol. Work is ongoing to better understand the health consequences and climate effects of these pollutants.
Prof. Robinson also works on quantifying the sources of ambient air pollution, a critical step to developing effective regulations. This research integrates field measurements with receptor- and emission-based modeling to better understand sources of organic aerosol. An emerging effort utilizes highly time resolved measurements of volatile and semivolatile organic compounds in source apportionment models. His group is also conducting smog chamber studies to investigate the photochemical stability of molecular markers commonly used for source apportionment. The ultimate goal is to develop more cost-effective regulatory strategies.
Biomass Energy & Global Climate
Prof. Robinson is also interested in biomass energy. Biomass (wood, agricultural residues, and fast-growing "energy" crops) is a renewable energy resource that is CO2-neutral, if utilized in a sustainable manner. He has worked extensively on cofiring biomass and coal in existing coal-fired utility boilers. Cofiring represents a near-term pathway for dramatically increasing our utilization of biomass energy. He is also working on a project to characterize air pollutant emissions from engines operating on ethanol-gasoline blends and biodiesel. The laboratory data will be implemented in air quality models to assess the impacts of widespread adoption of alternative fuels on urban and regional air quality to help inform future policy decisions.
Interdisciplinary Collaboration
Much of Prof. Robinson’s research is conducted as part of the Center for Atmospheric Particle Studies (CAPS) at Carnegie Mellon University. Strengths of the Center include the close coupling between science and policy, and extensive interplay between experiment and modeling. This interdisciplinary Center involves five core faculty members and more than 25 graduate and post-doctoral fellows in four engineering departments and the chemistry department. The Center is tightly integrated, with a large shared laboratory, weekly group seminars, and many students being co-advised by multiple faculty members.
研究兴趣
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Science (New York, N.Y.)no. 6655 (2023): 272-274
msra(2011)
Allen L. Robinson, Spyros N. Pandis, Eric Lipsky, Charles Stainer, Natalie Anderson, Satoshi Takahama, Sarah Rees
mag(2003)
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